2005A&A...437..905S


C.D.S. - SIMBAD4 rel 1.7 - 2021.02.24CET19:02:37

2005A&A...437..905S - Astronomy and Astrophysics, volume 437, 905-910 (2005/7-3)

Family ties: Abundances in Terzan 7, a Sgr dSph globular cluster.

SBORDONE L., BONIFACIO P., MARCONI G., BUONANNO R. and ZAGGIA S.

Abstract (from CDS):

We study the chemical composition of 5 giant stars in the globular cluster Terzan 7 associated with the Sagittarius dwarf spheroidal galaxy (Sgr dSph), based on high resolution UVES-VLT spectra. We confirm the metallicity found by previous high resolution investigations: [Fe/H]~-0.6. We also show that this cluster displays the same low α-element to iron ratio found in Sgr dSph field stars of similar metallicity, as well as the same low Ni/Fe ratio. These chemical signatures are characteristic of the Sgr dSph system, and appear to be shared both by the globular cluster Pal 12, which was most likely stripped from Sgr by tidal interaction, and by Pal 5, which may also have belonged in the past to the Sgr dSph system. Intriguingly even globular cluster Ruprecht 106, although not associated to Sgr, displays similar characteristics.

Abstract Copyright:

Journal keyword(s): stars: abundances - stars: atmospheres - Galaxy: globular clusters: individual: Terzan 7 - galaxies: abundances - galaxies: individual: Terzan 7 - galaxies: evolution

Simbad objects: 14

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Number of rows : 14

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 C 1235-509 GlC 12 38 40.20 -51 09 01.0           ~ 327 0
2 NAME Serpens Dwarf GlC 15 16 05.30 -00 06 41.0   15.1       ~ 641 1
3 UGC 10310 IG 16 16 17.9040378078 +47 02 43.158504118   14.9       ~ 129 0
4 NAME SDG G 18 55 03.1 -30 28 42   4.5 3.6     ~ 1809 2
5 M 54 GlC 18 55 03.33 -30 28 47.5           ~ 930 0
6 Cl* Terzan 7 BCP 1272 * 19 17 37.1323169384 -34 39 12.403223007   17.84 16.62     ~ 5 0
7 Cl* Terzan 7 KHG 1 * 19 17 38.1745753121 -34 39 17.134730302   18.04 16.76     ~ 6 0
8 Cl* Terzan 7 BCP 1282 * 19 17 39.3629565654 -34 39 06.458377160   17.45 16.08     ~ 8 0
9 Cl* Terzan 7 SL 16 * 19 17 43.20 -34 39 43.2   16.61 15.04     ~ 6 0
10 Cl* Terzan 7 SL 35 * 19 17 43.4982005972 -34 39 11.545438111   17.43 16.08     ~ 6 0
11 Cl Terzan 7 GlC 19 17 43.92 -34 39 27.8           ~ 371 0
12 Cl Arp 2 GlC 19 28 44.11 -30 21 20.3     12.41     ~ 308 0
13 Cl Terzan 8 GlC 19 41 44.41 -33 59 58.1     11.54     ~ 266 0
14 Cl Pal 12 GlC 21 46 38.84 -21 15 09.4     11.89     ~ 458 0

    Equat.    Gal    SGal    Ecl

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